Remove temporary workaround for cookie popups in e2e/login.spec.ts after bug fix

[coderabbitai]

A temporary workaround has been implemented in the test script to handle cookie popups due to a known bug related to cookie features in Kontur apps. This workaround should be removed once the bug is fixed.

Related task tracking the bug: https://kontur.fibery.io/Tasks/Task/Add-cookie-feature-to-Kontur-apps-18184

Context:

• PR: Adapt tests to support CI and broad them to other projects #685
• Comment: Adapt tests to support CI and broad them to other projects #685 (comment)

@amurKontur requested the creation of this issue to ensure the necessary code cleanup is tracked as a follow-up action after the bug fix is confirmed.